# A reinforced concrete T beam Concrete has the following dimensions b_c = 48 in. b_w = 16 in. h_f … 1 answer below »

A reinforced concrete T beam Concrete has the following dimensions b_c = 48 in. b_w = 16 in. h_f = 5 in, and h = 25 in The effective depth d = 20 in. Concrete, f ‘c = 6000 psi and f_y = 60000 psi. The reinforced concrete is assumed to weight 150 lb/ft’ (pcf) Using approximately one-hall the maximum tensile reinforcement (rho = 0.5 rho_max) permitted by the ACI Code Select the actual size of bar and number to be used. Determine the design moment capacity (Phi M_n) of the girder. If the beam span length used is 30 ft. and if in addition to its own weight (self-weight) it must support a superimposed dead load of 0 475 kip/ft. what uniform service live load (W_L) the beam can carry? A rectangular concrete beam of width b = 24 in. is limited by architectural considerations to a maximum total depth h = 16 in. It must carry a total factored load moment M_u = 400 ft-kips. Design the flexural reinforcement for this member, using compression steel if necessary. Allow d’ = 3 in. to the center of the bars from the compression or tension face of the beam. Material strengths are f_y = 60,000 psi and f/c = 4000 psi. Select reinforcement to provide the needed areas, and show a sketch of your final design. Assume No. 4 stirrups are used for shear. A rectangular concrete beam is limited to a cross section of b = 12 in. and d = 18.5 in. to resist an ultimate moment Mu = 4000 k-in. Compute the required tension reinforcement and if needed compression reinforcement. Material strengths are f_y = 40.000 psi and f/c – 3000 psi d’ = 2 5 in.

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